<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2013 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Reader
 * @copyright  Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    1.7.9, 2013-06-02
 */
/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT'))
{
    /**
     * @ignore
     */
    define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
    require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}

/**
 * PHPExcel_Reader_Excel2003XML
 *
 * @category   PHPExcel
 * @package    PHPExcel_Reader
 * @copyright  Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Reader_Excel2003XML extends PHPExcel_Reader_Abstract implements PHPExcel_Reader_IReader
{

    /**
     * Formats
     *
     * @var array
     */
    private $_styles = array();

    /**
     * Character set used in the file
     *
     * @var string
     */
    private $_charSet = 'UTF-8';

    /**
     * Create a new PHPExcel_Reader_Excel2003XML
     */
    public function __construct()
    {
        $this->_readFilter = new PHPExcel_Reader_DefaultReadFilter();
    }

    /**
     * Can the current PHPExcel_Reader_IReader read the file?
     *
     * @param 	string 		$pFilename
     * @return 	boolean
     * @throws PHPExcel_Reader_Exception
     */
    public function canRead($pFilename)
    {

        //	Office					xmlns:o="urn:schemas-microsoft-com:office:office"
        //	Excel					xmlns:x="urn:schemas-microsoft-com:office:excel"
        //	XML Spreadsheet			xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
        //	Spreadsheet component	xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet"
        //	XML schema 				xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882"
        //	XML data type			xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882"
        //	MS-persist recordset	xmlns:rs="urn:schemas-microsoft-com:rowset"
        //	Rowset					xmlns:z="#RowsetSchema"
        //

		$signature = array(
            '<?xml version="1.0"',
            '<?mso-application progid="Excel.Sheet"?>'
        );

        // Open file
        $this->_openFile($pFilename);
        $fileHandle = $this->_fileHandle;

        // Read sample data (first 2 KB will do)
        $data = fread($fileHandle, 2048);
        fclose($fileHandle);

        $valid = true;
        foreach ($signature as $match)
        {
            // every part of the signature must be present
            if (strpos($data, $match) === false)
            {
                $valid = false;
                break;
            }
        }

        //	Retrieve charset encoding
        if (preg_match('/<?xml.*encoding=[\'"](.*?)[\'"].*?>/um', $data, $matches))
        {
            $this->_charSet = strtoupper($matches[1]);
        }
//		echo 'Character Set is ',$this->_charSet,'<br />';

        return $valid;
    }

    /**
     * Reads names of the worksheets from a file, without parsing the whole file to a PHPExcel object
     *
     * @param 	string 		$pFilename
     * @throws 	PHPExcel_Reader_Exception
     */
    public function listWorksheetNames($pFilename)
    {
        // Check if file exists
        if (!file_exists($pFilename))
        {
            throw new PHPExcel_Reader_Exception("Could not open " . $pFilename . " for reading! File does not exist.");
        }
        if (!$this->canRead($pFilename))
        {
            throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid Spreadsheet file.");
        }

        $worksheetNames = array();

        $xml        = simplexml_load_file($pFilename);
        $namespaces = $xml->getNamespaces(true);

        $xml_ss = $xml->children($namespaces['ss']);
        foreach ($xml_ss->Worksheet as $worksheet)
        {
            $worksheet_ss     = $worksheet->attributes($namespaces['ss']);
            $worksheetNames[] = self::_convertStringEncoding((string) $worksheet_ss['Name'], $this->_charSet);
        }

        return $worksheetNames;
    }

    /**
     * Return worksheet info (Name, Last Column Letter, Last Column Index, Total Rows, Total Columns)
     *
     * @param   string     $pFilename
     * @throws   PHPExcel_Reader_Exception
     */
    public function listWorksheetInfo($pFilename)
    {
        // Check if file exists
        if (!file_exists($pFilename))
        {
            throw new PHPExcel_Reader_Exception("Could not open " . $pFilename . " for reading! File does not exist.");
        }

        $worksheetInfo = array();

        $xml        = simplexml_load_file($pFilename);
        $namespaces = $xml->getNamespaces(true);

        $worksheetID = 1;
        $xml_ss      = $xml->children($namespaces['ss']);
        foreach ($xml_ss->Worksheet as $worksheet)
        {
            $worksheet_ss = $worksheet->attributes($namespaces['ss']);

            $tmpInfo                     = array();
            $tmpInfo['worksheetName']    = '';
            $tmpInfo['lastColumnLetter'] = 'A';
            $tmpInfo['lastColumnIndex']  = 0;
            $tmpInfo['totalRows']        = 0;
            $tmpInfo['totalColumns']     = 0;

            if (isset($worksheet_ss['Name']))
            {
                $tmpInfo['worksheetName'] = (string) $worksheet_ss['Name'];
            }
            else
            {
                $tmpInfo['worksheetName'] = "Worksheet_{$worksheetID}";
            }

            if (isset($worksheet->Table->Row))
            {
                $rowIndex = 0;

                foreach ($worksheet->Table->Row as $rowData)
                {
                    $columnIndex = 0;
                    $rowHasData  = false;

                    foreach ($rowData->Cell as $cell)
                    {
                        if (isset($cell->Data))
                        {
                            $tmpInfo['lastColumnIndex'] = max($tmpInfo['lastColumnIndex'], $columnIndex);
                            $rowHasData                 = true;
                        }

                        ++$columnIndex;
                    }

                    ++$rowIndex;

                    if ($rowHasData)
                    {
                        $tmpInfo['totalRows'] = max($tmpInfo['totalRows'], $rowIndex);
                    }
                }
            }

            $tmpInfo['lastColumnLetter'] = PHPExcel_Cell::stringFromColumnIndex($tmpInfo['lastColumnIndex']);
            $tmpInfo['totalColumns']     = $tmpInfo['lastColumnIndex'] + 1;

            $worksheetInfo[] = $tmpInfo;
            ++$worksheetID;
        }

        return $worksheetInfo;
    }

    /**
     * Loads PHPExcel from file
     *
     * @param 	string 		$pFilename
     * @return 	PHPExcel
     * @throws 	PHPExcel_Reader_Exception
     */
    public function load($pFilename)
    {
        // Create new PHPExcel
        $objPHPExcel = new PHPExcel();

        // Load into this instance
        return $this->loadIntoExisting($pFilename, $objPHPExcel);
    }

    private static function identifyFixedStyleValue($styleList, &$styleAttributeValue)
    {
        $styleAttributeValue = strtolower($styleAttributeValue);
        foreach ($styleList as $style)
        {
            if ($styleAttributeValue == strtolower($style))
            {
                $styleAttributeValue = $style;
                return true;
            }
        }
        return false;
    }

    /**
     * pixel units to excel width units(units of 1/256th of a character width)
     * @param pxs
     * @return
     */
    private static function _pixel2WidthUnits($pxs)
    {
        $UNIT_OFFSET_MAP = array(0, 36, 73, 109, 146, 182, 219);

        $widthUnits = 256 * ($pxs / 7);
        $widthUnits += $UNIT_OFFSET_MAP[($pxs % 7)];
        return $widthUnits;
    }

    /**
     * excel width units(units of 1/256th of a character width) to pixel units
     * @param widthUnits
     * @return
     */
    private static function _widthUnits2Pixel($widthUnits)
    {
        $pixels           = ($widthUnits / 256) * 7;
        $offsetWidthUnits = $widthUnits % 256;
        $pixels += round($offsetWidthUnits / (256 / 7));
        return $pixels;
    }

    private static function _hex2str($hex)
    {
        return chr(hexdec($hex[1]));
    }

    /**
     * Loads PHPExcel from file into PHPExcel instance
     *
     * @param 	string 		$pFilename
     * @param	PHPExcel	$objPHPExcel
     * @return 	PHPExcel
     * @throws 	PHPExcel_Reader_Exception
     */
    public function loadIntoExisting($pFilename, PHPExcel $objPHPExcel)
    {
        $fromFormats = array('\-', '\ ');
        $toFormats   = array('-', ' ');

        $underlineStyles           = array(
            PHPExcel_Style_Font::UNDERLINE_NONE,
            PHPExcel_Style_Font::UNDERLINE_DOUBLE,
            PHPExcel_Style_Font::UNDERLINE_DOUBLEACCOUNTING,
            PHPExcel_Style_Font::UNDERLINE_SINGLE,
            PHPExcel_Style_Font::UNDERLINE_SINGLEACCOUNTING
        );
        $verticalAlignmentStyles   = array(
            PHPExcel_Style_Alignment::VERTICAL_BOTTOM,
            PHPExcel_Style_Alignment::VERTICAL_TOP,
            PHPExcel_Style_Alignment::VERTICAL_CENTER,
            PHPExcel_Style_Alignment::VERTICAL_JUSTIFY
        );
        $horizontalAlignmentStyles = array(
            PHPExcel_Style_Alignment::HORIZONTAL_GENERAL,
            PHPExcel_Style_Alignment::HORIZONTAL_LEFT,
            PHPExcel_Style_Alignment::HORIZONTAL_RIGHT,
            PHPExcel_Style_Alignment::HORIZONTAL_CENTER,
            PHPExcel_Style_Alignment::HORIZONTAL_CENTER_CONTINUOUS,
            PHPExcel_Style_Alignment::HORIZONTAL_JUSTIFY
        );

        $timezoneObj = new DateTimeZone('Europe/London');
        $GMT         = new DateTimeZone('UTC');


        // Check if file exists
        if (!file_exists($pFilename))
        {
            throw new PHPExcel_Reader_Exception("Could not open " . $pFilename . " for reading! File does not exist.");
        }

        if (!$this->canRead($pFilename))
        {
            throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid Spreadsheet file.");
        }

        $xml        = simplexml_load_file($pFilename);
        $namespaces = $xml->getNamespaces(true);

        $docProps = $objPHPExcel->getProperties();
        if (isset($xml->DocumentProperties[0]))
        {
            foreach ($xml->DocumentProperties[0] as $propertyName => $propertyValue)
            {
                switch ($propertyName)
                {
                    case 'Title' :
                        $docProps->setTitle(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Subject' :
                        $docProps->setSubject(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Author' :
                        $docProps->setCreator(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Created' :
                        $creationDate = strtotime($propertyValue);
                        $docProps->setCreated($creationDate);
                        break;
                    case 'LastAuthor' :
                        $docProps->setLastModifiedBy(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'LastSaved' :
                        $lastSaveDate = strtotime($propertyValue);
                        $docProps->setModified($lastSaveDate);
                        break;
                    case 'Company' :
                        $docProps->setCompany(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Category' :
                        $docProps->setCategory(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Manager' :
                        $docProps->setManager(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Keywords' :
                        $docProps->setKeywords(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                    case 'Description' :
                        $docProps->setDescription(self::_convertStringEncoding($propertyValue, $this->_charSet));
                        break;
                }
            }
        }
        if (isset($xml->CustomDocumentProperties))
        {
            foreach ($xml->CustomDocumentProperties[0] as $propertyName => $propertyValue)
            {
                $propertyAttributes = $propertyValue->attributes($namespaces['dt']);
                $propertyName       = preg_replace_callback('/_x([0-9a-z]{4})_/', 'PHPExcel_Reader_Excel2003XML::_hex2str', $propertyName);
                $propertyType       = PHPExcel_DocumentProperties::PROPERTY_TYPE_UNKNOWN;
                switch ((string) $propertyAttributes)
                {
                    case 'string' :
                        $propertyType  = PHPExcel_DocumentProperties::PROPERTY_TYPE_STRING;
                        $propertyValue = trim($propertyValue);
                        break;
                    case 'boolean' :
                        $propertyType  = PHPExcel_DocumentProperties::PROPERTY_TYPE_BOOLEAN;
                        $propertyValue = (bool) $propertyValue;
                        break;
                    case 'integer' :
                        $propertyType  = PHPExcel_DocumentProperties::PROPERTY_TYPE_INTEGER;
                        $propertyValue = intval($propertyValue);
                        break;
                    case 'float' :
                        $propertyType  = PHPExcel_DocumentProperties::PROPERTY_TYPE_FLOAT;
                        $propertyValue = floatval($propertyValue);
                        break;
                    case 'dateTime.tz' :
                        $propertyType  = PHPExcel_DocumentProperties::PROPERTY_TYPE_DATE;
                        $propertyValue = strtotime(trim($propertyValue));
                        break;
                }
                $docProps->setCustomProperty($propertyName, $propertyValue, $propertyType);
            }
        }

        foreach ($xml->Styles[0] as $style)
        {
            $style_ss = $style->attributes($namespaces['ss']);
            $styleID  = (string) $style_ss['ID'];
//			echo 'Style ID = '.$styleID.'<br />';
            if ($styleID == 'Default')
            {
                $this->_styles['Default'] = array();
            }
            else
            {
                $this->_styles[$styleID] = $this->_styles['Default'];
            }
            foreach ($style as $styleType => $styleData)
            {
                $styleAttributes = $styleData->attributes($namespaces['ss']);
//				echo $styleType.'<br />';
                switch ($styleType)
                {
                    case 'Alignment' :
                        foreach ($styleAttributes as $styleAttributeKey => $styleAttributeValue)
                        {
//								echo $styleAttributeKey.' = '.$styleAttributeValue.'<br />';
                            $styleAttributeValue = (string) $styleAttributeValue;
                            switch ($styleAttributeKey)
                            {
                                case 'Vertical' :
                                    if (self::identifyFixedStyleValue($verticalAlignmentStyles, $styleAttributeValue))
                                    {
                                        $this->_styles[$styleID]['alignment']['vertical'] = $styleAttributeValue;
                                    }
                                    break;
                                case 'Horizontal' :
                                    if (self::identifyFixedStyleValue($horizontalAlignmentStyles, $styleAttributeValue))
                                    {
                                        $this->_styles[$styleID]['alignment']['horizontal'] = $styleAttributeValue;
                                    }
                                    break;
                                case 'WrapText' :
                                    $this->_styles[$styleID]['alignment']['wrap'] = true;
                                    break;
                            }
                        }
                        break;
                    case 'Borders' :
                        foreach ($styleData->Border as $borderStyle)
                        {
                            $borderAttributes = $borderStyle->attributes($namespaces['ss']);
                            $thisBorder       = array();
                            foreach ($borderAttributes as $borderStyleKey => $borderStyleValue)
                            {
//									echo $borderStyleKey.' = '.$borderStyleValue.'<br />';
                                switch ($borderStyleKey)
                                {
                                    case 'LineStyle' :
                                        $thisBorder['style']        = PHPExcel_Style_Border::BORDER_MEDIUM;
//												$thisBorder['style'] = $borderStyleValue;
                                        break;
                                    case 'Weight' :
//												$thisBorder['style'] = $borderStyleValue;
                                        break;
                                    case 'Position' :
                                        $borderPosition             = strtolower($borderStyleValue);
                                        break;
                                    case 'Color' :
                                        $borderColour               = substr($borderStyleValue, 1);
                                        $thisBorder['color']['rgb'] = $borderColour;
                                        break;
                                }
                            }
                            if (!empty($thisBorder))
                            {
                                if (($borderPosition == 'left') || ($borderPosition == 'right') || ($borderPosition == 'top') || ($borderPosition == 'bottom'))
                                {
                                    $this->_styles[$styleID]['borders'][$borderPosition] = $thisBorder;
                                }
                            }
                        }
                        break;
                    case 'Font' :
                        foreach ($styleAttributes as $styleAttributeKey => $styleAttributeValue)
                        {
//								echo $styleAttributeKey.' = '.$styleAttributeValue.'<br />';
                            $styleAttributeValue = (string) $styleAttributeValue;
                            switch ($styleAttributeKey)
                            {
                                case 'FontName' :
                                    $this->_styles[$styleID]['font']['name']         = $styleAttributeValue;
                                    break;
                                case 'Size' :
                                    $this->_styles[$styleID]['font']['size']         = $styleAttributeValue;
                                    break;
                                case 'Color' :
                                    $this->_styles[$styleID]['font']['color']['rgb'] = substr($styleAttributeValue, 1);
                                    break;
                                case 'Bold' :
                                    $this->_styles[$styleID]['font']['bold']         = true;
                                    break;
                                case 'Italic' :
                                    $this->_styles[$styleID]['font']['italic']       = true;
                                    break;
                                case 'Underline' :
                                    if (self::identifyFixedStyleValue($underlineStyles, $styleAttributeValue))
                                    {
                                        $this->_styles[$styleID]['font']['underline'] = $styleAttributeValue;
                                    }
                                    break;
                            }
                        }
                        break;
                    case 'Interior' :
                        foreach ($styleAttributes as $styleAttributeKey => $styleAttributeValue)
                        {
//								echo $styleAttributeKey.' = '.$styleAttributeValue.'<br />';
                            switch ($styleAttributeKey)
                            {
                                case 'Color' :
                                    $this->_styles[$styleID]['fill']['color']['rgb'] = substr($styleAttributeValue, 1);
                                    break;
                            }
                        }
                        break;
                    case 'NumberFormat' :
                        foreach ($styleAttributes as $styleAttributeKey => $styleAttributeValue)
                        {
//								echo $styleAttributeKey.' = '.$styleAttributeValue.'<br />';
                            $styleAttributeValue = str_replace($fromFormats, $toFormats, $styleAttributeValue);
                            switch ($styleAttributeValue)
                            {
                                case 'Short Date' :
                                    $styleAttributeValue = 'dd/mm/yyyy';
                                    break;
                            }
                            if ($styleAttributeValue > '')
                            {
                                $this->_styles[$styleID]['numberformat']['code'] = $styleAttributeValue;
                            }
                        }
                        break;
                    case 'Protection' :
                        foreach ($styleAttributes as $styleAttributeKey => $styleAttributeValue)
                        {
//								echo $styleAttributeKey.' = '.$styleAttributeValue.'<br />';
                        }
                        break;
                }
            }
//			print_r($this->_styles[$styleID]);
//			echo '<hr />';
        }
//		echo '<hr />';

        $worksheetID = 0;
        $xml_ss      = $xml->children($namespaces['ss']);

        foreach ($xml_ss->Worksheet as $worksheet)
        {
            $worksheet_ss = $worksheet->attributes($namespaces['ss']);

            if ((isset($this->_loadSheetsOnly)) && (isset($worksheet_ss['Name'])) &&
                    (!in_array($worksheet_ss['Name'], $this->_loadSheetsOnly)))
            {
                continue;
            }

//			echo '<h3>Worksheet: ',$worksheet_ss['Name'],'<h3>';
//
            // Create new Worksheet
            $objPHPExcel->createSheet();
            $objPHPExcel->setActiveSheetIndex($worksheetID);
            if (isset($worksheet_ss['Name']))
            {
                $worksheetName = self::_convertStringEncoding((string) $worksheet_ss['Name'], $this->_charSet);
                //	Use false for $updateFormulaCellReferences to prevent adjustment of worksheet references in
                //		formula cells... during the load, all formulae should be correct, and we're simply bringing
                //		the worksheet name in line with the formula, not the reverse
                $objPHPExcel->getActiveSheet()->setTitle($worksheetName, false);
            }

            $columnID = 'A';
            if (isset($worksheet->Table->Column))
            {
                foreach ($worksheet->Table->Column as $columnData)
                {
                    $columnData_ss = $columnData->attributes($namespaces['ss']);
                    if (isset($columnData_ss['Index']))
                    {
                        $columnID = PHPExcel_Cell::stringFromColumnIndex($columnData_ss['Index'] - 1);
                    }
                    if (isset($columnData_ss['Width']))
                    {
                        $columnWidth = $columnData_ss['Width'];
//						echo '<b>Setting column width for '.$columnID.' to '.$columnWidth.'</b><br />';
                        $objPHPExcel->getActiveSheet()->getColumnDimension($columnID)->setWidth($columnWidth / 5.4);
                    }
                    ++$columnID;
                }
            }

            $rowID = 1;
            if (isset($worksheet->Table->Row))
            {
                foreach ($worksheet->Table->Row as $rowData)
                {
                    $rowHasData = false;
                    $row_ss     = $rowData->attributes($namespaces['ss']);
                    if (isset($row_ss['Index']))
                    {
                        $rowID = (integer) $row_ss['Index'];
                    }
//					echo '<b>Row '.$rowID.'</b><br />';

                    $columnID = 'A';
                    foreach ($rowData->Cell as $cell)
                    {

                        $cell_ss = $cell->attributes($namespaces['ss']);
                        if (isset($cell_ss['Index']))
                        {
                            $columnID = PHPExcel_Cell::stringFromColumnIndex($cell_ss['Index'] - 1);
                        }
                        $cellRange = $columnID . $rowID;

                        if ($this->getReadFilter() !== NULL)
                        {
                            if (!$this->getReadFilter()->readCell($columnID, $rowID, $worksheetName))
                            {
                                continue;
                            }
                        }

                        if ((isset($cell_ss['MergeAcross'])) || (isset($cell_ss['MergeDown'])))
                        {
                            $columnTo = $columnID;
                            if (isset($cell_ss['MergeAcross']))
                            {
                                $columnTo = PHPExcel_Cell::stringFromColumnIndex(PHPExcel_Cell::columnIndexFromString($columnID) + $cell_ss['MergeAcross'] - 1);
                            }
                            $rowTo = $rowID;
                            if (isset($cell_ss['MergeDown']))
                            {
                                $rowTo = $rowTo + $cell_ss['MergeDown'];
                            }
                            $cellRange .= ':' . $columnTo . $rowTo;
                            $objPHPExcel->getActiveSheet()->mergeCells($cellRange);
                        }

                        $cellIsSet          = $hasCalculatedValue = false;
                        $cellDataFormula    = '';
                        if (isset($cell_ss['Formula']))
                        {
                            $cellDataFormula = $cell_ss['Formula'];
                            // added this as a check for array formulas
                            if (isset($cell_ss['ArrayRange']))
                            {
                                $cellDataCSEFormula = $cell_ss['ArrayRange'];
//								echo "found an array formula at ".$columnID.$rowID."<br />";
                            }
                            $hasCalculatedValue = true;
                        }
                        if (isset($cell->Data))
                        {
                            $cellValue   = $cellData    = $cell->Data;
                            $type        = PHPExcel_Cell_DataType::TYPE_NULL;
                            $cellData_ss = $cellData->attributes($namespaces['ss']);
                            if (isset($cellData_ss['Type']))
                            {
                                $cellDataType = $cellData_ss['Type'];
                                switch ($cellDataType)
                                {
                                    /*
                                      const TYPE_STRING		= 's';
                                      const TYPE_FORMULA		= 'f';
                                      const TYPE_NUMERIC		= 'n';
                                      const TYPE_BOOL			= 'b';
                                      const TYPE_NULL			= 'null';
                                      const TYPE_INLINE		= 'inlineStr';
                                      const TYPE_ERROR		= 'e';
                                     */
                                    case 'String' :
                                        $cellValue = self::_convertStringEncoding($cellValue, $this->_charSet);
                                        $type      = PHPExcel_Cell_DataType::TYPE_STRING;
                                        break;
                                    case 'Number' :
                                        $type      = PHPExcel_Cell_DataType::TYPE_NUMERIC;
                                        $cellValue = (float) $cellValue;
                                        if (floor($cellValue) == $cellValue)
                                        {
                                            $cellValue = (integer) $cellValue;
                                        }
                                        break;
                                    case 'Boolean' :
                                        $type      = PHPExcel_Cell_DataType::TYPE_BOOL;
                                        $cellValue = ($cellValue != 0);
                                        break;
                                    case 'DateTime' :
                                        $type      = PHPExcel_Cell_DataType::TYPE_NUMERIC;
                                        $cellValue = PHPExcel_Shared_Date::PHPToExcel(strtotime($cellValue));
                                        break;
                                    case 'Error' :
                                        $type      = PHPExcel_Cell_DataType::TYPE_ERROR;
                                        break;
                                }
                            }

                            if ($hasCalculatedValue)
                            {
//								echo 'FORMULA<br />';
                                $type         = PHPExcel_Cell_DataType::TYPE_FORMULA;
                                $columnNumber = PHPExcel_Cell::columnIndexFromString($columnID);
                                if (substr($cellDataFormula, 0, 3) == 'of:')
                                {
                                    $cellDataFormula = substr($cellDataFormula, 3);
//									echo 'Before: ',$cellDataFormula,'<br />';
                                    $temp            = explode('"', $cellDataFormula);
                                    $key             = false;
                                    foreach ($temp as &$value)
                                    {
                                        //	Only replace in alternate array entries (i.e. non-quoted blocks)
                                        if ($key = !$key)
                                        {
                                            $value = str_replace(array('[.', '.', ']'), '', $value);
                                        }
                                    }
                                }
                                else
                                {
                                    //	Convert R1C1 style references to A1 style references (but only when not quoted)
//									echo 'Before: ',$cellDataFormula,'<br />';
                                    $temp = explode('"', $cellDataFormula);
                                    $key  = false;
                                    foreach ($temp as &$value)
                                    {
                                        //	Only replace in alternate array entries (i.e. non-quoted blocks)
                                        if ($key = !$key)
                                        {
                                            preg_match_all('/(R(\[?-?\d*\]?))(C(\[?-?\d*\]?))/', $value, $cellReferences, PREG_SET_ORDER + PREG_OFFSET_CAPTURE);
                                            //	Reverse the matches array, otherwise all our offsets will become incorrect if we modify our way
                                            //		through the formula from left to right. Reversing means that we work right to left.through
                                            //		the formula
                                            $cellReferences = array_reverse($cellReferences);
                                            //	Loop through each R1C1 style reference in turn, converting it to its A1 style equivalent,
                                            //		then modify the formula to use that new reference
                                            foreach ($cellReferences as $cellReference)
                                            {
                                                $rowReference    = $cellReference[2][0];
                                                //	Empty R reference is the current row
                                                if ($rowReference == '')
                                                    $rowReference    = $rowID;
                                                //	Bracketed R references are relative to the current row
                                                if ($rowReference{0} == '[')
                                                    $rowReference    = $rowID + trim($rowReference, '[]');
                                                $columnReference = $cellReference[4][0];
                                                //	Empty C reference is the current column
                                                if ($columnReference == '')
                                                    $columnReference = $columnNumber;
                                                //	Bracketed C references are relative to the current column
                                                if ($columnReference{0} == '[')
                                                    $columnReference = $columnNumber + trim($columnReference, '[]');
                                                $A1CellReference = PHPExcel_Cell::stringFromColumnIndex($columnReference - 1) . $rowReference;
                                                $value           = substr_replace($value, $A1CellReference, $cellReference[0][1], strlen($cellReference[0][0]));
                                            }
                                        }
                                    }
                                }
                                unset($value);
                                //	Then rebuild the formula string
                                $cellDataFormula = implode('"', $temp);
//								echo 'After: ',$cellDataFormula,'<br />';
                            }

//							echo 'Cell '.$columnID.$rowID.' is a '.$type.' with a value of '.(($hasCalculatedValue) ? $cellDataFormula : $cellValue).'<br />';
//
                            $objPHPExcel->getActiveSheet()->getCell($columnID . $rowID)->setValueExplicit((($hasCalculatedValue) ? $cellDataFormula : $cellValue), $type);
                            if ($hasCalculatedValue)
                            {
//								echo 'Formula result is '.$cellValue.'<br />';
                                $objPHPExcel->getActiveSheet()->getCell($columnID . $rowID)->setCalculatedValue($cellValue);
                            }
                            $cellIsSet  = $rowHasData = true;
                        }

                        if (isset($cell->Comment))
                        {
//							echo '<b>comment found</b><br />';
                            $commentAttributes = $cell->Comment->attributes($namespaces['ss']);
                            $author            = 'unknown';
                            if (isset($commentAttributes->Author))
                            {
                                $author = (string) $commentAttributes->Author;
//								echo 'Author: ',$author,'<br />';
                            }
                            $node       = $cell->Comment->Data->asXML();
//							$annotation = str_replace('html:','',substr($node,49,-10));
//							echo $annotation,'<br />';
                            $annotation = strip_tags($node);
//							echo 'Annotation: ',$annotation,'<br />';
                            $objPHPExcel->getActiveSheet()->getComment($columnID . $rowID)
                                    ->setAuthor(self::_convertStringEncoding($author, $this->_charSet))
                                    ->setText($this->_parseRichText($annotation));
                        }

                        if (($cellIsSet) && (isset($cell_ss['StyleID'])))
                        {
                            $style = (string) $cell_ss['StyleID'];
//							echo 'Cell style for '.$columnID.$rowID.' is '.$style.'<br />';
                            if ((isset($this->_styles[$style])) && (!empty($this->_styles[$style])))
                            {
//								echo 'Cell '.$columnID.$rowID.'<br />';
//								print_r($this->_styles[$style]);
//								echo '<br />';
                                if (!$objPHPExcel->getActiveSheet()->cellExists($columnID . $rowID))
                                {
                                    $objPHPExcel->getActiveSheet()->getCell($columnID . $rowID)->setValue(NULL);
                                }
                                $objPHPExcel->getActiveSheet()->getStyle($cellRange)->applyFromArray($this->_styles[$style]);
                            }
                        }
                        ++$columnID;
                    }

                    if ($rowHasData)
                    {
                        if (isset($row_ss['StyleID']))
                        {
                            $rowStyle = $row_ss['StyleID'];
                        }
                        if (isset($row_ss['Height']))
                        {
                            $rowHeight = $row_ss['Height'];
//							echo '<b>Setting row height to '.$rowHeight.'</b><br />';
                            $objPHPExcel->getActiveSheet()->getRowDimension($rowID)->setRowHeight($rowHeight);
                        }
                    }

                    ++$rowID;
                }
            }
            ++$worksheetID;
        }

        // Return
        return $objPHPExcel;
    }

    private static function _convertStringEncoding($string, $charset)
    {
        if ($charset != 'UTF-8')
        {
            return PHPExcel_Shared_String::ConvertEncoding($string, 'UTF-8', $charset);
        }
        return $string;
    }

    private function _parseRichText($is = '')
    {
        $value = new PHPExcel_RichText();

        $value->createText(self::_convertStringEncoding($is, $this->_charSet));

        return $value;
    }

}
